A meat inspector has been given the assignment of estimating the mean net mass of packages of

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A meat inspector has been given the assignment of estimating the mean net mass of packages of ground chuck labelled “1.4 kg.” Of course, he realizes that the masses cannot be precisely 1.4 kg. A sample of 36 packages reveals the mean mass to be 1.401 kg, with a standard deviation of 0.01 kg.
a. What is the estimated population mean?
b. Determine a 95% confidence interval for the population mean.

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Basic Statistics For Business & Economics

ISBN: 9781259268939

6th Canadian Edition

Authors: Douglas A. Lind, William G Marchal, Samuel A. Wathen, Carol Ann Waite

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